CN104706444A - Volume reduction device for left ventricle - Google Patents
Volume reduction device for left ventricle Download PDFInfo
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- CN104706444A CN104706444A CN201510094749.1A CN201510094749A CN104706444A CN 104706444 A CN104706444 A CN 104706444A CN 201510094749 A CN201510094749 A CN 201510094749A CN 104706444 A CN104706444 A CN 104706444A
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- left ventricle
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- heart
- support
- reduction device
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- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 title abstract description 7
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
Abstract
The invention provides a volume reduction device for a left ventricle. The volume reduction device comprises a supporting frame which is made of shape memory alloy, and the supporting frame is covered with a polymeric membrane. When the supporting frame is released into the left ventricle from the cardiac apex of the left ventricle, the shape of the released supporting frame is matched with the inner wall of the left ventricle. A supporting end which extends outwards is arranged at the end, far away from the cardiac apex, of the supporting frame, and the supporting end is clamped on the inner wall of the left ventricle. A connecting sleeve which is detachably connected with a push rod is arranged at the end, close to the cardiac apex, of the supporting frame. According to the volume reduction device for the left ventricle, the ventricle area without functions can be isolated, the volume contraction and expansion are reduced, the tension of the left ventricle is lowered, and the cardiac function of left ventricle reconstitution and heart failure patients is improved. An intervention way is adopted, the design of minimally invasive cardiac apex passing is created, and the trauma is lowered to the minimum. Through the design that the diameter of a transferring sheath is decreased in the cardiac apex passing way or the intervention way, the risk of damaging blood vessels, cardiac valves and the like is avoided. The design of a positioning base, a cardiac apex positioner and the like is adopted, positioning is good, and the attaching tension is high.
Description
Technical field
The present invention relates to a kind of left ventricle capacity-reduction device.
Background technology
Heart failure is the final home to return to of most of cardiovascular disease, is also the main cause of death, and the whole world has 2,300 ten thousand people to suffer from this disease nearly.Parachute is first percutaneous left room reconstructing device based on microcatheter technology design, this technology is reported in 2007 the earliest, carry out gradually abroad afterwards, have accumulated the experience of example up to a hundred, and obtaining European CE certification in 2011, result display effectively can alleviate the clinical symptoms of heart failure patient, improves cardiac function, the five-year survival rate of advanced heart failure patient can be increased to 80% from 30%, routine more than 500 in America and Europe's application at present.
China's heart failure prevalence 0.9%, northern area 1.4%, about has 4,000,000 patients with heart failure.According to estimates, the sickness rate of China's acute myocardial infarction is about 45,/10 ten thousand ~ 55,/10 ten thousand, also in rising trend at present.
General heart failure especially chronic process time all have cardiac dilatation, based on left ventricle dilation, patients ' life quality obviously declines, and clinical prognosis is poor, causes huge medical treatment and burden on society.Left ventricular volume reduction (partial left ventriculectomy, PLV) treats the myocardiac a kind of operation method of late expansion type in recent years, proposed first in 1996 by Brazilian doctor Batista.Left ventricular volume reduction is at home also known as work " part left room excision " or " retention left room excision ", but the case fatality rate that left ventricular volume reduction also exists higher heart failure, arrhythmia is correlated with, limit it in clinical extensive use.
Percutaneous ventricular remodeling art (percutaneous ventricular restoration, PVR) be the new way that treatment alleviates symptoms of heart failure, it is the forward position Therapeutic Method for outmoded Anterior wall myocardial infarction companion heart failure patient, the method got involved by Wicresoft has been implanted into " parachute " (CardioKinetix company Parachute) at the heart of patient, effectively improves the clinical symptoms of heart failure patient.After heart attack, a lot of left heart patient has left ventricular dilatation thus causes cardiac output to reduce, and causes symptoms of heart failure as breathed hard.Ischemic heart desease can cause symptoms of heart failure and Left Ventricular Global Dysfunction, implant " parachute " muscle that " parachute " will damage afterwards to isolate, isolate the muscle parts of malfunction from normal segments, which reduces overall cardiac volume and recover more normal left chamber function.The indication of percutaneous ventricular remodeling art is old Anterior wall myocardial infarction companion antetheca without motion or dyskinesis, Left Ventricular Ejection Fraction descender, perform the operation more than 70 minutes, need half fiber crops, preoperative row is ultrasonic measures ventricle size with heart CT, selects sizeable " parachute ".
But, also there is shortcoming and very large operation easier in Parachute: 1, implantation instrument is owing to mainly penetrating core indoor wall location by support end, thus diameter is larger, cause induction system diameter large, thus cause intervention approach to enter risk that human vas and heart have injured blood vessel and cardiac valve etc.; 2, aortic valve is to the resistance of implantation instrument, large by difficulty, and operation complexity is high, and operating time is long, adds surgical risk to a great extent and reduces success rate of operation; 3, apparatus location and laminating tensile requirements high, therefore discharge time need could shape by balloon expandable.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of left ventricle capacity-reduction device, for solving the problems such as percutaneous ventricular remodeling art implantation instrument is comparatively large, risk is high, success rate of operation is low in prior art.
For achieving the above object and other relevant objects, the invention provides a kind of left ventricle capacity-reduction device, it comprises the bracing frame be made by marmem, and bracing frame is coated with polymeric membrane; When bracing frame is released in left ventricle from the apex of the heart of left ventricle, shape after the release of bracing frame and the inwall of left ventricle adapt, bracing frame is provided with outwardly directed support end away from one end of the apex of the heart, support end is stuck on the inwall of left ventricle, and bracing frame is provided with the adapter sleeve removably connected with push rod near one end of the apex of the heart.
Preferably, bracing frame is made up of many support ribs, and many support ribs are incorporated into together near one end of the apex of the heart, and are connected with adapter sleeve, and one end that support rib extend out to outside, polymeric membrane overlay area away from the apex of the heart forms support end.
Further preferably, the support end of support rib is support crimping inwardly curling again after turning up, and the support smooth section of crimping and the inwall of left ventricle abut against.
Further preferably, multiple support rib forms a recess caved in the direction away from the apex of the heart near one end of the apex of the heart, adapter sleeve is positioned at this recess.
Further preferably, bracing frame also comprises mesh grid, and mesh grid covers on the supporting surface of many support rib compositions, and polymeric membrane covers in mesh grid.
Preferably, bracing frame is made up of mesh grid, and the support end of bracing frame is from one end outwardly directed many piece supporting wires of mesh grid away from the apex of the heart.
Further preferably, on the inside that polymeric membrane covers mesh grid or outside.
Preferably, bracing frame is made up of multi-layer braided net, and polymeric membrane is clipped between adjacent two layers mesh grid.
Preferably, bracing frame is also provided with positioning seat near one end of the apex of the heart, and positioning seat is woven by marmem and forms, and positioning seat is evenly arranged along the circumference of bracing frame, and after positioning seat release, positioning seat is against on the inwall of left ventricle.
Further preferably, positioning seat is made up of multiple spheroid, and multiple spheroid is evenly arranged along the circumference of bracing frame.
Further preferably, positioning seat is made up of many locating supports, one end of locating support is connected with bracing frame one end near the apex of the heart, the other end of locating support be provided with turn up backward in the location crimping rolled, the smooth section of location crimping is against the inwall of left ventricle, and many locating supports are evenly arranged along the circumference of bracing frame.
Preferably, bracing frame is provided with the apex of the heart localizer through the apex of the heart near one end of the apex of the heart, one end that apex of the heart localizer stretches out left ventricle is provided with lower card, and the outer wall of lower card and left ventricle fits, adapter sleeve is positioned in lower card, and apex of the heart localizer, lower card are woven by marmem and form.
Further preferably, polymeric membrane is accompanied in lower card.
Further preferably, one end that apex of the heart localizer is positioned at left ventricle is provided with upper disk surface, and the inwall of upper disk surface and left ventricle is fitted, and upper disk surface is woven by marmem and forms.
Further preferably, bracing frame near between one end of the apex of the heart with apex of the heart localizer by regulating waist to be connected, regulate waist to be formed by marmem braiding, adjustment waist is provided with at least one fold, and during adjustment stretching waist, fold is opened.
As mentioned above, left ventricle capacity-reduction device of the present invention, has following beneficial effect:
This left ventricle capacity-reduction device, can isolate the ventricular area that left ventricle does not have function, reduces and shrinks and diastole volume, reduces left ventricular tension, improves the cardiac function of left ventricular remodeling and patients with heart failure; Adopt intervention approach, and start the design of Wicresoft through the apex of the heart, wound is reduced to minimum; In apical approach or intervention approach, reduce the design of delivery sheath diameter, avoid the risk of injured blood vessel and cardiac valve etc.; Device adopts positioning seat, the isostructural design of apex of the heart localizer, has good positioning and tension force of fit is strong, therefore when release without the need to shaping by balloon expandable; Operation complexity reduces greatly, and operating time shortens, and reduces surgical risk to a great extent, adds success rate of operation.
Accompanying drawing explanation
Fig. 1 is shown as the process schematic that left ventricle capacity-reduction device of the present invention implants left ventricle.
Fig. 2 is shown as the structural representation of the first embodiment of the left ventricle capacity-reduction device shown in Fig. 1.
Fig. 3 is shown as the front view of the left ventricle capacity-reduction device shown in Fig. 2.
Fig. 4 is shown as the structural representation that the left ventricle capacity-reduction device shown in Fig. 2 is positioned at left ventricle.
Fig. 5 is shown as the structural representation of the second embodiment of the left ventricle capacity-reduction device shown in Fig. 1.
Fig. 6 is shown as the structural representation that the left ventricle capacity-reduction device shown in Fig. 5 is positioned at left ventricle.
Fig. 7 is shown as the structural representation of the third embodiment of the left ventricle capacity-reduction device shown in Fig. 1.
Fig. 8 is shown as the structural representation that the left ventricle capacity-reduction device shown in Fig. 7 is positioned at left ventricle.
Fig. 9 is shown as the structural representation of the 4th kind of embodiment of the left ventricle capacity-reduction device shown in Fig. 1.
Figure 10 is shown as the structural representation that the left ventricle capacity-reduction device shown in Fig. 9 is positioned at left ventricle.
Figure 11 is shown as the structural representation of the 5th kind of embodiment of the left ventricle capacity-reduction device shown in Fig. 1.
Figure 12 is shown as the structural representation of the 6th kind of embodiment of the left ventricle capacity-reduction device shown in Fig. 1.
The 7th kind of embodiment that Figure 13 is shown as the left ventricle capacity-reduction device shown in Fig. 1 is positioned at the structural representation of left ventricle.
The 8th kind of embodiment that Figure 14 is shown as the left ventricle capacity-reduction device shown in Fig. 1 is positioned at the structural representation of left ventricle.
Figure 15 is shown as the structural representation of the 9th kind of embodiment of the left ventricle capacity-reduction device shown in Fig. 1.
The tenth kind of embodiment that Figure 16 is shown as the left ventricle capacity-reduction device shown in Fig. 1 is positioned at the structural representation of left ventricle.
The 11 kind of embodiment that Figure 17 is shown as the left ventricle capacity-reduction device shown in Fig. 1 is positioned at the structural representation of left ventricle.
Element numbers explanation
1 bracing frame
11 support ends
12 support ribs
13 support crimping
14 recesses
15 mesh grids
16 supporting wires
2 polymeric membranes
3 left ventriclies
31 apexes of the heart
4 push rod
5 adapter sleeves
6 positioning seats
61 spheroids
62 locating supports
63 location crimpings
7 apex of the heart localizers
71 times cards
72 upper disk surfaces
8 regulate waist
81 folds
9 delivery sheaths
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this description can understand other advantages of the present invention and effect easily.
Refer to Fig. 1 to Figure 17.Notice, structure, ratio, size etc. that this description institute accompanying drawings illustrates, content all only in order to coordinate description to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, still all should drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, quote in this description as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
As shown in Fig. 1 to Figure 17, the invention provides a kind of left ventricle capacity-reduction device, it comprises the bracing frame 1 be made by marmem, bracing frame 1 is coated with polymeric membrane 2; When bracing frame 1 is released in left ventricle 3 from the apex of the heart 31 of left ventricle 3, the inwall of the shape after the release of bracing frame 1 and left ventricle 3 adapts, bracing frame 1 is provided with outwardly directed support end 11 away from one end of the apex of the heart 31, support end 11 is stuck on the inwall of left ventricle 3, and bracing frame 1 is provided with the adapter sleeve 5 removably connected with push rod 4 near one end of the apex of the heart 31.Wherein, polymeric membrane 4 can be made up of materials such as polyethylene terephtalate or expanded PTFE ePTFT, and bracing frame 1 is made by Nitinol; Because Nitinol has super-elasticity and shape memory function, whole capacity-reduction device can be out of shape at left ventricle 3 endoadaptation.
As shown in Figure 1, left ventricle capacity-reduction device is connected with push rod 4, and under original state, push rod 4, left ventricle capacity-reduction device are all positioned at delivery sheath 9; Then, push rod 4 pushes left ventricle capacity-reduction device in left ventricle 3, and bracing frame 1 is released to the shape adapted with the inwall of left ventricle 3 together with polymeric membrane 2, support end 11 is stuck on the inwall of left ventricle 3, plays the effect of fixing left ventricle capacity-reduction device.
As shown in Figures 2 to 11, bracing frame 1 is made up of many support ribs 12, many support ribs 12 are incorporated into together near one end of the apex of the heart 31, and be connected with adapter sleeve 5, one end that support rib 12 extend out to outside, polymeric membrane 2 overlay area away from the apex of the heart 31 forms support end 11, is stuck on the inwall of left ventricle 3.The length that support rib 12 extend out to outside, polymeric membrane 2 overlay area is preferably 1 ~ 3mm.
As shown in Figure 11, Figure 13, Figure 14, the support end 11 of support rib 12 is support crimping 13 inwardly curling again after turning up, and supports the smooth section of crimping 13 and the inwall of left ventricle 3 abuts against.This support crimping 13 plays and supports the effect of left ventricle, is unlikely to tip to penetrate the inwall of left ventricle 3 simultaneously and causes damage, after left ventricle capacity-reduction device can also be made to implant, can be regulated by patient or automatically be adjusted to optimum position.
As shown in Figures 2 to 4, multiple support rib 12 forms a recess 14 caved in the direction away from the apex of the heart 31 near one end of the apex of the heart 31, adapter sleeve 5 is positioned at this recess 14.
As shown in Figure 12 to Figure 14, bracing frame 1 also comprises mesh grid 15, and mesh grid 15 covers on the supporting surface of many support ribs 12 composition, and polymeric membrane 2 covers in mesh grid 15.The effect of mesh grid 15 is the smooth of the configuration of surface of the polymeric membrane 2 between maintenance support rib 12, and minimizing thrombosis produces, and strengthens the elastic performance of resistance courage and uprightness energy and whole device simultaneously.
As shown in figure 15, bracing frame 1 can be made up of mesh grid 15 separately, and the support end 11 of bracing frame 1 is from one end outwardly directed many piece supporting wires 16 of mesh grid 15 away from the apex of the heart 31.Now, on polymeric membrane 2 inside that can cover mesh grid 15 or outside.Be used alone mesh grid 15 as bracing frame 1, diameter when can reduce in capacity-reduction device income delivery sheath 9, therefore can adopt the delivery sheath 9 that diameter is less, reduces delivery sheath 9 pairs of blood vessels and cardiac valve in intervention approach, the isostructural damage of chordae tendineae.
As shown in Figure 16 to Figure 17, bracing frame 1 also can be made up of double-deck or multi-layer braided net 15, and polymeric membrane 2 is clipped between adjacent two layers mesh grid 15, on the inside that also can cover mesh grid 15 or outside.
As shown in Fig. 5 to Fig. 8, Figure 13, bracing frame 1 is also provided with positioning seat 6 near one end of the apex of the heart 31, and positioning seat 6 is woven by marmem and forms, and positioning seat 6 is evenly arranged along the circumference of bracing frame 1, after positioning seat 6 discharges, positioning seat 6 is against on the inwall of left ventricle 3.Positioning seat 6 plays and makes the relatively-stationary effect in the position of capacity-reduction device in left ventricle 3.
As shown in Fig. 5 to Fig. 8, positioning seat 6 is made up of multiple spheroid 61, and multiple spheroid 61 is evenly arranged along the circumference of bracing frame 1.
As shown in figure 13, positioning seat 6 is made up of many locating supports 62, one end of locating support 62 is connected with bracing frame 1 one end near the apex of the heart 31, the other end of locating support 62 be provided with turn up backward in the location crimping 63 rolled, the smooth section of location crimping 63 is against the inwall of left ventricle 3, and many locating supports 62 are evenly arranged along the circumference of bracing frame 1.
As shown in Fig. 7 to Figure 11, Figure 14, Figure 16 to Figure 17, bracing frame 1 is provided with the apex of the heart localizer 7 through the apex of the heart 31 near one end of the apex of the heart 31, one end that apex of the heart localizer 7 stretches out left ventricle 3 is provided with lower card 71, lower card 71 fits with the outer wall of left ventricle 3, adapter sleeve 5 is positioned in lower card 71, and apex of the heart localizer 7, lower card 71 are woven by marmem and form.As shown in Figure 16 to Figure 17, in lower card 71, polymeric membrane 2 can be accompanied.
As shown in Fig. 9 to Figure 11, Figure 14, one end that apex of the heart localizer 7 is positioned at left ventricle 3 is provided with upper disk surface 72, and upper disk surface 72 is fitted with the inwall of left ventricle 3, and upper disk surface 72 is woven by marmem and forms.Apex of the heart localizer 7, lower card 71 and upper disk surface 72 are for the relative position between fixing support rack 1 and the apex of the heart 31.
As shown in Figure 16 to Figure 17, bracing frame 1, near passing through between one end of the apex of the heart 31 with apex of the heart localizer 7 to regulate waist 8 to be connected, regulates waist 8 to be woven by marmem and forms, regulate waist 8 to be provided with at least one fold 81, when regulating waist 8 to stretch, fold 81 is opened.When apex of the heart localizer 7 is by tractive, regulate the fold 81 of waist 8 stretch or purse up, the distance between scalable apex of the heart localizer 7 and bracing frame 1, can be applicable to the anatomical structure of different patient.
The first embodiment of this left ventricle capacity-reduction device as shown in Figures 2 to 4, wherein, bracing frame 1 is support rib 12, and multiple support rib 12 forms a recess 14 caved in the direction away from the apex of the heart 31 near one end of the apex of the heart 31, and adapter sleeve 5 is positioned at this recess 14.
As shown in Figure 5 to Figure 6, wherein, bracing frame 1 is support rib 12 to the second embodiment of this left ventricle capacity-reduction device, and is provided with the positioning seat 6 be made up of multiple spheroid 61.
The third embodiment of this left ventricle capacity-reduction device is as shown in Fig. 7 to Fig. 8, and wherein, bracing frame 1 is support rib 12, and is provided with the positioning seat 6 that is made up of multiple spheroid 61 and the apex of the heart localizer 7 with lower card 71.
4th kind of embodiment of this left ventricle capacity-reduction device is as shown in Fig. 9 to Figure 10, and wherein, bracing frame 1 is support rib 12, and is provided with the apex of the heart localizer 7 with lower card 71, upper disk surface 72.
As shown in figure 11, wherein, bracing frame 1 is support rib 12 to 5th kind of embodiment of this left ventricle capacity-reduction device, and the support end 11 of support rib 12 for supporting crimping 13, and is provided with the apex of the heart localizer 7 with lower card 71, upper disk surface 72.
As shown in figure 12, wherein, bracing frame 1 is made up of support rib 12 and mesh grid 15 6th kind of embodiment of this left ventricle capacity-reduction device.
As shown in figure 13, wherein, bracing frame 1 is made up of support rib 12 and mesh grid 15 7th kind of embodiment of this left ventricle capacity-reduction device, and support end 11, for supporting crimping 13, is also provided with the positioning seat 6 be made up of many locating supports 62.
As shown in figure 14, wherein, bracing frame 1 is made up of support rib 12 and mesh grid 15 8th kind of embodiment of this left ventricle capacity-reduction device, and support end 11, for supporting crimping 13, is also provided with the apex of the heart localizer 7 with lower card 71, upper disk surface 72.
As shown in figure 15, wherein, bracing frame 1 is made up of mesh grid 15 9th kind of embodiment of this left ventricle capacity-reduction device, and support end 11 is supporting wire 16.
Tenth kind of embodiment of this left ventricle capacity-reduction device as shown in figure 16, wherein, bracing frame 1 is made up of double-deck or multi-layer braided net 15, and is provided with the apex of the heart localizer 7 with lower card 71, also be provided with between apex of the heart localizer 7 and bracing frame 1 and regulate waist 8, regulate waist 8 to be provided with a fold 81.
11 kind of embodiment of this left ventricle capacity-reduction device as shown in figure 17, wherein, bracing frame 1 is made up of double-deck or multi-layer braided net 15, and is provided with the apex of the heart localizer 7 with lower card 71, also be provided with between apex of the heart localizer 7 and bracing frame 1 and regulate waist 8, regulate waist 8 to be provided with two folds 81.
In sum, left ventricle capacity-reduction device of the present invention, can isolate the ventricular area that left ventricle does not have function, reduces and shrinks and diastole volume, reduces left ventricular tension, improves the cardiac function of left ventricular remodeling and patients with heart failure; Adopt intervention approach, and start the design of Wicresoft through the apex of the heart, wound is reduced to minimum; In apical approach or intervention approach, reduce the design of delivery sheath diameter, avoid the risk of injured blood vessel and cardiac valve etc.; Device adopts positioning seat, the isostructural design of apex of the heart localizer, has good positioning and tension force of fit is strong, therefore when release without the need to shaping by balloon expandable; Operation complexity reduces greatly, and operating time shortens, and reduces surgical risk to a great extent, adds success rate of operation.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (15)
1. a left ventricle capacity-reduction device, is characterized in that: it comprises the bracing frame (1) be made by marmem, support frame as described above (1) is coated with polymeric membrane (2); Support frame as described above (1) from the apex of the heart (31) of left ventricle (3) be released into left ventricle (3) interior time, shape after support frame as described above (1) release and the inwall of left ventricle (3) adapt, support frame as described above (1) is provided with outwardly directed support end (11) away from one end of the apex of the heart (31), described support end (11) is stuck on the inwall of left ventricle (3), and support frame as described above (1) is provided with near one end of the apex of the heart (31) the adapter sleeve (5) removably connected with push rod (4).
2. left ventricle capacity-reduction device according to claim 1, it is characterized in that: support frame as described above (1) is made up of many support ribs (12), described many support ribs (12) are incorporated into together near one end of the apex of the heart (31), and be connected with described adapter sleeve (5), one end that described support rib (12) extend out to described polymeric membrane (2) outside, overlay area away from the apex of the heart (31) forms support end (11).
3. left ventricle capacity-reduction device according to claim 2, it is characterized in that: the support end (11) of described support rib (12) is support crimping (13) inwardly curling again after turning up, and the smooth section of described support crimping (13) and the inwall of left ventricle (3) abut against.
4. left ventricle capacity-reduction device according to claim 2, it is characterized in that: described multiple support rib (12) forms a recess (14) caved in the direction away from the apex of the heart (31) near one end of the apex of the heart (31), and described adapter sleeve (5) is positioned at this recess (14).
5. left ventricle capacity-reduction device according to claim 2, it is characterized in that: support frame as described above (1) also comprises mesh grid (15), described mesh grid (15) covers on the supporting surface that described many support ribs (12) form, and described polymeric membrane (2) covers in described mesh grid (15).
6. left ventricle capacity-reduction device according to claim 1, it is characterized in that: support frame as described above (1) is made up of mesh grid (15), the support end (11) of support frame as described above (1) is from one end outwardly directed many piece supporting wires (16) of described mesh grid (15) away from the apex of the heart (31).
7. left ventricle capacity-reduction device according to claim 6, is characterized in that: on the inside that described polymeric membrane (2) covers described mesh grid (15) or outside.
8. left ventricle capacity-reduction device according to claim 1, it is characterized in that: support frame as described above (1) is made up of multi-layer braided net (15), described polymeric membrane (2) is clipped between adjacent two layers mesh grid (15).
9. left ventricle capacity-reduction device according to claim 1, it is characterized in that: support frame as described above (1) is also provided with positioning seat (6) near one end of the apex of the heart (31), described positioning seat (6) is woven by marmem and forms, described positioning seat (6) is evenly arranged along the circumference of support frame as described above (1), after described positioning seat (6) release, described positioning seat (6) is against on the inwall of left ventricle (3).
10. left ventricle capacity-reduction device according to claim 9, it is characterized in that: described positioning seat (6) is made up of multiple spheroid (61), described multiple spheroid (61) is evenly arranged along the circumference of support frame as described above (1).
11. left ventricle capacity-reduction devices according to claim 9, it is characterized in that: described positioning seat (6) has many locating supports (62) to form, one end of described locating support (62) is connected with support frame as described above (1) one end near the apex of the heart (31), the other end of described locating support (62) be provided with turn up backward in the location crimping (63) rolled, the smooth section of described location crimping (63) is against the inwall of left ventricle (3), and described many locating supports (62) are evenly arranged along the circumference of support frame as described above (1).
12. left ventricle capacity-reduction devices according to claim 1, it is characterized in that: support frame as described above (1) is provided with the apex of the heart localizer (7) through the apex of the heart (31) near one end of the apex of the heart (31), one end that described apex of the heart localizer (7) stretches out left ventricle (3) is provided with lower card (71), described lower card (71) fits with the outer wall of described left ventricle (3), described adapter sleeve (5) is positioned on described lower card (71), and described apex of the heart localizer (7), lower card (71) are woven by marmem and form.
13. left ventricle capacity-reduction devices according to claim 12, is characterized in that: accompany polymeric membrane (2) in described lower card (71).
14. left ventricle capacity-reduction devices according to claim 12, it is characterized in that: one end that described apex of the heart localizer (7) is positioned at left ventricle (3) is provided with upper disk surface (72), described upper disk surface (72) is fitted with the inwall of described left ventricle (3), and described upper disk surface (72) is woven by marmem and forms.
15. left ventricle capacity-reduction devices according to claim 12, it is characterized in that: support frame as described above (1) near the apex of the heart (31) one end with between apex of the heart localizer (7) pass through regulate waist (8) to be connected, described adjustment waist (8) is woven by marmem and forms, described adjustment waist (8) is provided with at least one fold (81), when described adjustment waist (8) stretches, described fold (81) is opened.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510094749.1A CN104706444B (en) | 2015-03-03 | 2015-03-03 | Left ventricle capacity-reduction device |
| PCT/CN2015/084024 WO2016138713A1 (en) | 2015-03-03 | 2015-07-15 | Left ventricle volume reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510094749.1A CN104706444B (en) | 2015-03-03 | 2015-03-03 | Left ventricle capacity-reduction device |
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| Publication Number | Publication Date |
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| CN104706444A true CN104706444A (en) | 2015-06-17 |
| CN104706444B CN104706444B (en) | 2017-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510094749.1A Active CN104706444B (en) | 2015-03-03 | 2015-03-03 | Left ventricle capacity-reduction device |
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| CN (1) | CN104706444B (en) |
| WO (1) | WO2016138713A1 (en) |
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| WO2016138713A1 (en) * | 2015-03-03 | 2016-09-09 | 上海形状记忆合金材料有限公司 | Left ventricle volume reduction device |
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| CN114504352A (en) * | 2022-03-09 | 2022-05-17 | 山东省千佛山医院 | Ventricular septum is perforated isolated with heart plug device and system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016138713A1 (en) | 2016-09-09 |
| CN104706444B (en) | 2017-07-18 |
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Effective date of registration: 20231215 Address after: Room 605 and 607, Building 7, No. 37 Chaoqian Road, Science and Technology Park, Changping District, Beijing, 102299 Patentee after: Lepu Xintai (Beijing) Medical Technology Co.,Ltd. Address before: Floor 7, Building 2, No. 518 Xinzhuan Road, Songjiang High tech Park, Caohejing Development Zone, Songjiang District, Shanghai, 2016 Patentee before: SHANGHAI SHAPE MEMORY ALLOY Co.,Ltd. |